sixpenceee:

Nudibranchs are shell-less marine mollusks. Some 6,000 species live all over the world. They are noted for their often extraordinary colours and striking forms. (Source)

sixpenceee:

Nudibranchs are shell-less marine mollusks. Some 6,000 species live all over the world. They are noted for their often extraordinary colours and striking forms. (Source)